Heating apparatus



Feb. 24, 1931. F. E. SELLMAN ETAL 1,793,873

HEATING APPARATUS Filed April 26. 1929 2 Sheets-Sheet 1 'flh; /4 -f-ir H 27 i /7 v i I 6 n I i s lime 23 J B I'm 22 flak ATTORNEY Feb. 24, 1931. SELLMAN ETAL 1,793,873

HEATING APPARATUS Filed April 26, 1929 2 Sheets-Sheet 2 Patented Feb. 24, 1931 UNITED STATES PATENT OFFICE IOLKE MIL SELLIAN, OI WHITE PLAINS, NEW YORK, AND WILLIAI D. COLLINS, OF EVANSVILLE, INDIANA, ASSIGNOBS, BY amen: ASSIGNMENTS, TO ELECTBOLUX SERVE-L CORPORATION, OI NEW YORK, N. Y., A. CORPORATION OI DELAWARE HEATING APYARATUB Application filed April 28,

Our invention has for its urpose the provision of an improved type adjustable support which is particularly well adapted to hold a gas burner in proper space relationship with a member to be heated.

In the specific embodiment, chosen for purposes of illustration, the support is shown in conjunction with the generator of an absorption refrigerating apparatus. In this case,

as in most others, it is essential that the burner be quite accurately aligned with the flue in order to secure a uniform heating of the latter.

Heretofore, it has been the practice to secure the generator and the burner separately to the side of the refrigerator cabinet with the result that a slight displacement of the enerator, which might easily occur during s ipment, would spoil the accurate alignment.

Also, as can be easily appreciated, difliculty was often experienced in securing a satisfactory alignment in the first place. It is the purpose of our invention to provide a support which will remedy these faults and also provide means for adjustment of the burner as local conditions may require.

These, as well as other objects and advantages of our invention, will be a parent from the following description read in connection so with the accompanying drawings forming part of this specification, on which Fig. 1 is an elevational view, partially in cross-section, showing the support use in connection with a generator of an absorption refrigerating apparatus;

Fig. 2 is a top view of the support and burner; and

Fig. 3 is an elevational view of the support and burner shown in Fig. 2, the device eing rotated 90 about a vertical axis from the position shown in Fig. 1.

On the drawings, reference character A indicates the support, B the burner, and C the generator. Support A comprises a portion 10 to the upper end of which is secured a clamping collar 11. The interior faceof collar 11 is provided with a circumferential recess which receives an annular washer 12 made of a resilient and heat resisting mate- 50 rial, such as asbestos.

1829. Serial No. 358,218.

Collar 11 is adapted to clamp around the lower end of a flue 13 which comprises a port1on of generator G. A bolt 14 passes through a hole 1n one arm of collar 11 and en ages threads formed in the other arm, thus rawing the two arms together which serves, with the aid of washer 12, to clamp them securely around the flue.

Integral with the lower end of portion 10 of support A is a vertically extending rod-like member 15. Member 15 is cylindrical with the exception of a flat face 16 extending from the bottom substantially the entire length of the member.

Burner B ma .be of any suitable type. The gas intake 1 of the burner is connected to a gas supply conduit 18. Conduit 18 is made preferably of comparatively flexible copper tubing. Within intake 17 is a valve controlled by a flexible diaphragm 19. to which heat from the flame is conducted by a member 20. This valve functions so as to close if the flame is extinguished and thus prevent the escape of unignited gas.

The intake 17 enters the base of the burner proper and there communicates with the lower end of a mixing tube 21. The mixing tube is provided with apertures for the introduction of air around which is secured a cylindrical screen 27. v

The base of burner B is provided with a clamp 22 which embraces member 15. A bolt '23 passes through one arm of clamp 22 and engages threads formed in the other arm, and, when tightened, serves to draw the arms tightly around member 15. Bolt 23 is so located as to bear against the flat face 16 and thus prevent rotation of the burner B around the support A. When bolt 23 is loosened the burner may be adjusted vertically with respect to the support and the generator.

Generator C comprises flue 13 and a liquid container 24: centrally through which the flue passes. A thermo-siphon conduit 25 is wound s irally around thelower portion of flue 13 w ich extends below container 24. In devices of this nature, the burner must be accurately centered with respect to the flue to avoid impingement of the flame against the flue. At the same time, it is desirable to be times maintaining the burner accurately aligned and centered with relation to the flue.

While we have illustrated and described a preferred embodiment of our invention, it is to be understood that structural variations fall within its scope. Also, it has been as--- sumed throughout that the generator is in a vertical position but it is clear that the support might be attached to a generator placed in any position. Furthermore. the support may be used in conjunction with other than refrigerating apparatus, such as a water heater for instance.

We claim:

1. In a liquid heating device, a fluid container, a flue for heating said container, means to attach a burner to and concentric with said flue and means permitting the adjustment of said burner varying distances from said flue.

2. In a liquid heating device, a fluid container, a flue extending through and beyond said container, a burner support comprising a circular collar clamped around the extending end of said flue and a partially cylindrical member attached to and at right angles to said collar and having a flat surface formed on one side thereof, a burner having a clamp attached thereto, said clamp embracing said partially cylindrical member so as to hold the burner centered with respect to the flue.

3. In a liquid heating device, a fluid container, a flue extending through and beyond said container, a burner support comprising a circular collar clamped around the extending end of said flue and a partially cylindrical member attached to and at right angles to said collar and having a flat surface formed on one side thereof, a burner having a clamp attached thereto, said clamp embracing said partially cylindrical member so as to hold the burner centered with res ect to the flue while allowing the burner to e placed varying distances from the flue.

4. In a liquid heating-device, a fluid container, a flue extending through and beyond said container, a burner support compris ing a circular collar clamped around the extending end of said flue and a partially cylindrical member attached to and at right angles to said collar and havin a flat surface formed on one side thereof, a urner having a clamp comprising two arms attached thereto, a bolt for drawing said arms together around said partially cylindrical portion, said bolt so located as to bear against said flat surface and thus prevent rotation of Y means to attach a burner to and in a given the burner around said cylindrical member.

said bolt so located as to bear against said flat surface and thus prevent rotation of the burner around said cylindrical member while allowing the burner to be placed varyingdistances from the flue.

6. In a liquid heating device, a fluid container, a flue for heating said container,

alignment with the flue and means permitting adjustment of said burner with respect to the flue and constraining the adjusting movement to said given alignment.

7. In a liquid heating device, a fluid container, a flue for. heating said container, means-to attach a burner to and in a given alignment with the flue including a collar adapted to be attached in various positions to said flue and means permitting adjustment of said burner with respect to said flue and constraining the adjusting movement to said given alignment, said means acting to provide said given alignment independently of the position of the collar on the flue.

8. In a liquid heating device, a fluid container, a flue extending within and beyond said container, means comprisin a circular collar clamped around the exten ing end of said flue to attach a burner to and in given 105 alignment with the flue and means permitting adjustment of said burner with respect to the flue and constraining the adjusting movement to said given alignment.

,9. In a liquid heating device, a fluid con- 110 tainer, a straight circular flue extending into said fluid container and having an extension outside said fluid container, a support comprising a circular collar clamped around the extension of the flue and a rod extending par- 115 allel to the axis of the flue, a burner having a clamp adapted to be fixed on to said rod and said clamp and rod cooperating to permit adjustment of said burner with respect to the flue while constraining the adjusting move- 12o ment to a given alignment with respect to I the flue.

' 10. In a liquid heating device, a fluid container, a flue extending through and beyond said container, a burner support comprlsing 1 a circular collar clamped around the extending end of said flue and a partially cylindrical member attached to and at right angles to said collar and having a flat surface formed on one side thereof, a burner having 0 In testimony whereof, we have aflixed our signatures.

FOLKE EMIL SELLMAN. WILLIAM D. COLLINS. 

